Regenerated cotton yarn, also known as waste spinning yarn, secondary brand yarn. It is to collect the recycled flowers, waste silk, waste yarn, waste yarn, waste materials and scrap cloth produced in the textile production process, as well as the scraps and leftovers produced in the clothing cutting process, as well as the textile discarded in daily activities. Fibers and their products are yarns made from centralized opening, impurity removal, dust removal, mixing, carding, drawing, drafting and twisting. Regenerated cotton yarn generally uses a new type of open-end spinning machine. Because the raw fiber length of regenerated cotton yarn is shorter than that of raw cotton, it mainly produces rovings of about 4-13 counts (14-44tex). Purpose of regenerated cotton yarn: Regenerated cotton is often dyed and then spun according to the product use. The spinning fineness is determined according to the raw materials and uses. Used for weaving cotton blankets, furniture fabrics, wall coverings, labor protection work clothes, industrial wrapping fabrics, floor coverings, wiping cloths, table blankets, sofa and chair covers, etc. Classification of regenerated cotton yarn Regenerated cotton yarn includes cotton-type regenerated yarn and chemical fiber regenerated yarn. Cotton recycled yarn is basically made from the scraps of cotton knitted clothing, while chemical fiber recycled yarn is basically made from the scraps of polyester clothing or products. Through professional fabric scrap management, recycled cotton yarn rotor spinning processing, yarn sales and other upstream and downstream links, it provides raw materials for denim, curtain fabrics, sofa cloths, gloves and mops. two. The value of recycled cotton yarn my country is the world’s largest producer and exporter of textiles and clothing. With the improvement of economic level and people’s living standards, the discharge of large amounts of textile waste is a manifestation of environmental pollution by the textile industry. These wastes not only waste resources but also cause environmental pollution. The so-called textile waste mainly includes short fibers produced due to chemical and mechanical effects during the textile process, waste yarn, waste silk, waste yarn, waste yarn, waste materials, scraps of cloth produced during the textile production process, and clothing cutting. The scraps and scraps produced during the process, as well as the textile fibers and their products discarded in daily activities. Internationally, it is customary to divide textile waste into soft and hard waste. Soft waste refers to textile waste that can be returned to spinning production without excessive further processing; while hard waste refers to yarn structure. As well as all textile waste in woven, knitted and non-woven structures. For the treatment of textile waste, methods such as accumulation, landfill, and incineration were basically used in the past. However, the disadvantage is that the accumulation of textile waste will occupy land and easily cause collapse; the accumulated waste is exposed to the air and accumulates dust and impurities. Affecting environmental sanitation; under the action of rainwater, dyes and other harmful components on textile waste will leach and seep into the ground, polluting groundwater. The landfill is chosen to be carried out under the surface. Although it will not affect the ground environment, the landfilled site can hardly be reused in the city, and there will be an additional cost; due to the non-degradability of chemical fiber itself, especially synthetic Landfilling of fiber and chemical fiber waste will harden the soil; similarly, harmful substances on the waste will seep into the soil and underground with water. Contaminate soil and groundwater. The incineration of waste fabrics will produce a large amount of dust and harmful gases that pollute the atmosphere and affect environmental sanitation. Moreover, the chemical fiber residues after incineration are more difficult to handle. Therefore, general treatment methods cannot completely solve the problem and will also cause pollution problems. From the perspective of textile processing ecology, people must not only consider how to easily handle textile waste, but also consider the impact of dyes and various auxiliaries on textiles, and the environmental impact of each component of textile waste during the treatment process, and Take effective measures to reduce the impact on the environment. As people have higher and higher requirements for environmental protection, the issue of waste disposal has attracted more and more attention. According to statistics, textile and textile fiber waste account for 3.5%-4% of total urban domestic waste. If the average cycle of clothes is 3-4 years, the current world fiber usage reaches more than 56 million tons per year, and textile waste is about 70%, so fiber waste reaches about 40 million tons per year. These Wastes are mostly treated as garbage, which often causes environmental pollution. However, if comprehensively utilized properly, these wastes can achieve unexpected effects. When the generation of textile waste is unavoidable, the reuse of harmless waste has become a key focus and development direction. Every effort is made to turn waste into a second source of textile raw materials. This will undoubtedly reduce the amount of textile waste processed. It saves raw materials and energy, improves the utilization level of resources, and reduces costs. For decades, the textile industry has undisputedly entered the camp of recycling raw materials, and there are many model examples at home and abroad. Textile waste is one of the most important and valuable materials in the future. A large amount of waste around the world is now sent to modern treatment plants for recycling, which also brings considerable economic benefits to enterprises. Relevant data shows that in 2010, the total amount of raw materials such as scrap materials used in domestic recycled cotton yarn reached about 3 million tons. It is estimated that 50% of the yarn is cotton-type recycled yarn, and based on a cotton output of 200 kilograms per mu, it is equivalent to the output of more than 7 million acres of cotton fields. Regenerated cotton yarn not only realizes the recycling of resources, saves limited resources, but also solves the problem of scrap material processing and contributes to environmental governance. Cangnan County, Wenzhou alone achieves a throughput of more than 3 million tons of corner materials a year. asPoor, the yarn count is relatively thick. In addition to the waste cotton leftovers produced by the cotton spinning mill itself, there is also a comprehensive mixture of waste waste produced by the cotton knitting mill, wild fibers and some recycled waste fabrics. Due to different fiber properties and different product requirements, the process processing is also inconsistent. It can be roughly divided into three processes: cotton blending, carding, and worsted spinning. Cotton blending is actually a process of pre-processing waste fibers such as opening and cleaning. Waste products generated by cotton spinning mills
AAA Flame Retardant Fabric Network DFGRTJUYKYU
